Pile-wire for looms



(No Model.)

R. E. MURPHY. PILE WIRE POR LooMs.

Patented Apr. 9, 1895.

` INVENTUR'.

" UNITED STATES PATENT OFFICE ROBERT E. MURPHY, OF LOWELL, ASSIGNOR OFONE-HALF TOTHEA MASSA- i OHUSETTS MOHAIR PLUSH COMPANY, OFBOSTON,MASSACHUSETTS.

PILE-WIRE FOR LooMs.

SPECIFICATION forming part of Letters Patent No. 537,220, dated April 9,1895 Application filed November 10, 1894. Serial No. 528,383. (Nomodel.)

To all whom it may concern:

Be it known that I, ROBERT n. MURPHY, of

Lowell, in the county of Middlesex and State tion.

This invention relates to an improvement in the wires used in looms forweaving pile fabric, and is particularly adapted for use in those loomswhich weave two pieces of pile fabric simultaneously. Y

The invention consists in certain novel features of construction andarrangement of parts which will be fully hereinafter described andparticularly pointed out in the claims.

Reference is to be had to the accompanying drawings, and the charactersmarked thereon,

which form a part of this specication, like characters designating likeparts or features, as the case may be, wherever they occur.

In the drawings, Figure lis a sectional end view of a portion of a loomshowing the breast-beam, the lay, the relative position of the two setsof warp-threads, and a series of wires in position between the twopieces of fabric. Figs. 2 and 3 are frontand rear views respectively ofmy improved wire and its shield. Fig. 4 is a view showing the knife partof the wire in position between the two pieces of fabric to cut thewarp-threads toform thepile or plush. Figs. 5 and 6 are longitudinal andcrosssectional views respectively, on the lines 55 and 6-6 of Fig. 2.

This invention relates particularly to those looms that weavesimultaneously two pieces of pile fabric. Insuch looms, as is wellknown, the pile or plush sides of the two pieces of fabric face eachother and are held together during the process of weaving, by thewarp-thread of each piece being woven about the wire until the wires arewithdrawn. When the wires, as heretofore constructed, are withdrawn tocut the warp-threads and thus form the pile or plush,`.the cutting headof the-wire, if made broad enough to hold the threads taut enough to cutthem, frequently cuts the body of the fabric; and when the heads ofthese wires are made narrow to avoid this difficulty, it frequentlyhappens that some of the warp -threads are not stretched tautenough tocut. By using my improved form of wire, both these difficulties areovercome. The warp-threads are held taut over the cutting part of thewire, while at the same time the body of the fabric is protected by ashield from said cutting part.

The lay a, the breast-beam b, the warpthreads c, the sets of rollers ff', the two pieces of plush fabric d d', and the arrangement of saidparts are the same as is usual in looms of the kind referred to. I layno claim to these parts, they being shown merely to show the relation ofmy invention therewith.

e represents approximately the place wherethe wires are inserted in thefabric and withdrawn in the usual way. Y

My improved form of wire consists of the shaft-portiou h having anenlarged spear shaped head h the edges of which are made blunt. Near thebase of said head the sides of he wire are formed with cutting edges, asat 3. part of the head h by pinching the edges lr2 of said shield uponsaid head h or in any other desired manner. The shieldis made with aspear-shaped head r having blunt edges. This head is bent outwardly ashort distance away from the shaft-part h, said spear-shaped head rbeing adjacent the cutting edges h3. The wires are inserted in the usualway, the Warp-threads of the upper piece d of the fabric extendingaround the lower side of said wire andl bound to the fabric d by theweft in the usual way. The loops of the lower piece of fabric d willengage the upper side of said wire. Now, when the wire is withdrawn, theloops of the warp that have been woven about the wire pass between theshaft and thespear-head fr of the A shield r is ftrmly secured to thebase shield, as shown in Fig. 4, the head r serving From the foregoing,it will be seen that by my invention the fabric is entirely protectedfrom the cutting edges of the wire,while the Warp loops are at the sametime drawn taut over said cutting edges, thus insuring the cutting ofsaid loops without injury to the body of the fabric.

Having thus explained the nature of my invention and described a way ofconstructing and using the same, although without attempting to setforth all of the forms in which it may he made or all the modes of itsuse, what I claim, and desire to secu re byuLetters Patent, 1s-

1. A pile wire for looms comprising in its construction a shaft having aspear-head, cutting edges on said shaft adjacent the base of said head,a shield secured on said headand provided with a head rfottset fromsaid.shaft fabric and to permit the warp-threads to pass t between saidshield and shaft and over said cutting edges, substantially as and forthe purpose described.

-In testimony Whereot` I have signed my `naine to this specitication, inthe presence of two subscribing witnesses, this 6th day of November, A.D. 1894.

ROBERT E. MURPHY. Witnesses:

A, P. SAWYER,

Ain EIRTH.

